www.ThinkITI.com

Home
MCQ
Search
Free Apps
Important
Study Groups
Contact Us
Policy

Home
MCQ
Objective Questions
Engineering
Mechanical
ME Set-3
Engineering Materials
171

Engineering Materials MCQ with Answers

171) Which is false statement about annealing.Annealing is done to

relieve stresses

harden steel slightly

improve machining characteristic

soften material

Answer is:

harden steel slightly

Engineering Materials MCQ with Answers

For more MCQ's Click Here

Related Engineering Materials MCQ with Answers

172) Argentite is the principal ore or raw material for

aluminium

tin

zinc

None of these

Answer is:

None of these

173) Hardness of lower bainite (tempered martensite) is about

RC 65

RC 48

RC 57

RC 80

Answer is:

RC 57

Explanation:

Hardness of lower bainite (tempered martensite) is about RC 57

174) Which is false statement about normalizing. Normalizing is done to

refine grain structure

reduce segregation in casting

improve mechanical properties

induce stresses-

Answer is:

induce stresses-

Which is false statement about normalizing. Normalizing is done to

175) Vanadium in high speed steels

promotes decarburisation

provides high hot hardness

forms very hard carbides and thus in-creases wear resistance

promotes retention of austenite

Answer is:

forms very hard carbides and thus in-creases wear resistance

Engineering Materials MCQ with Answers

For more MCQ's Click Here